[4] When he retired, he was appointed an Officer of the Order of the British Empire, for services to education and the community, in the 1983 Queen's Birthday Honours.

At the same time a new role as Head of Saint Kentigern was created with former headmaster of Rangitoto College, David Hodge taking up the position.

[12][13] Saint Kentigern Girls' School resumed operations at a newly constructed facility on Shore Road in Remuera in 2022.

[15] The school's houses are named after Scottish Presbyterian church members, each of whom died for their cause (martyrs), and could be considered to have given their all for their faith.

2001 saw the 1st XV eclipse the previous year's 1A competition and storm the championship in their defeat of King's College in the final.

The tournament was staged in early May, where the 1st XV defeated Hartpury College to take the world championship title.

In 2019 Saint Kentigern won the CO-ED division in the national 1XV Championships beating Feilding High School 29–22.

[22] Alumni of the Rugby Program who have represented New Zealand (for the All Blacks) include Steve Surridge, John Afoa, Joe Rokocoko, Jerome Kaino, Kieran Read, Matt Duffie, Seta Tamanivalu, Dalton Papali'i, Braydon Ennor, Finlay Christie and Tamaiti Williams.

TJ Faiane, Sione Mafileo, Matt Duffie, Dalton Papalii, Sam Nock, Blake Gibson, Finlay Christie, and Tanielu Tele’a are Saint Kentigern old boys in the current Auckland based Blues (Super Rugby) squad.

It was announced that Vunivalu signed a deal to play for Queensland Reds in the Super Rugby competition starting from 2021.

Another notable mention is the Saint Kentigern old boys who are in the current New Zealand national under-20 rugby union team: Rivez Reihana, Tamaiti Williams, and Etene Nanai-Seturo.